EP3417956A1 - Outil d'emboutissage - Google Patents

Outil d'emboutissage Download PDF

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Publication number
EP3417956A1
EP3417956A1 EP18187860.4A EP18187860A EP3417956A1 EP 3417956 A1 EP3417956 A1 EP 3417956A1 EP 18187860 A EP18187860 A EP 18187860A EP 3417956 A1 EP3417956 A1 EP 3417956A1
Authority
EP
European Patent Office
Prior art keywords
swaging
extending portion
pintail
collar
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18187860.4A
Other languages
German (de)
English (en)
Other versions
EP3417956B1 (fr
Inventor
Akira Ikada
Taro TAKEUCHI
Yuki UTSUMI
Iori KISHIMOTO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP3417956A1 publication Critical patent/EP3417956A1/fr
Application granted granted Critical
Publication of EP3417956B1 publication Critical patent/EP3417956B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/022—Setting rivets by means of swaged-on locking collars, e.g. lockbolts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/046—Riveting hollow rivets mechanically by edge-curling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/105—Portable riveters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/022—Open die forging

Definitions

  • the present invention relates to a swaging tool for fastening a portion to be fastened by swaging a collar to a fastening pin.
  • a hydraulic swaging tool configured to swage a collar to a fastening pin by operating a piston inside a cylinder using a fluid has been disclosed (see Patent Document 1, for example).
  • a swaging tool besides a hydraulic swaging tool include a swaging tool in which a piston inside a cylinder is operated by air pressure.
  • Patent Document 1 US Patent No. 5548889
  • the swaging tool disclosed in Patent Document 1 is a hydraulic swaging tool, it is necessary to provide therein a port for causing the fluid to flow into the cylinder, a port for causing the fluid to flow out of the cylinder, an oil passage for circulating the fluid, and the like. Further, because it is necessary to secure the stroke of the piston with respect to the cylinder, a configuration of the swaging tool becomes complex, and consequently, the size of the swaging tool becomes large. When the size of the swaging tool becomes large, it becomes difficult to use the tool where a work space is limited, and as a result, the tool becomes less versatile.
  • an object of the present invention is to provide a compact swaging tool that can be easily used even when a work space is limited.
  • a swaging tool for fastening a portion to be fastened is configured to move a collar fitted to a pintail side of a fastening pin toward a pinhead side so as to bring the collar into contact with the portion to be fastened, the pinhead of the fastening pin being positioned on one side of the portion to be fastened through which the fastening pin is inserted and the pintail of the fastening pin being positioned on the other side of the portion to be fastened, to swage the collar to the fastening pin with the collar being in contact with the portion to be fastened, and to apply a tensile load to the pintail to break off and remove the pintail.
  • the swaging tool includes a holding member configured to hold the pintail of the fastening pin; a swaging member having a swaging die formed therein, the swaging die being configured to come into contact with and swage the collar; and a stroke mechanism configured to expand and contract a space between the swaging member and the holding member.
  • the stroke mechanism includes a rotatable rotary member and is configured to convert a rotation of the rotary member to an expansion and contraction of the space between the holding member and the swaging member and to restrict a rotation of the swaging member and a rotation of the holding member.
  • the rotation of the rotary member of the stroke mechanism can be converted to the expansion and contraction of the swaging member, thereby allowing the space between the holding member and the swaging member to expand and contract. It is thus possible to apply a sufficient tensile load to the pintail, which can cause the pintail to break off.
  • the stroke mechanism restricts the rotation of the swaging member and the holding member resulting from the rotation of the rotary member, the swaging member does not rotate with respect to the collar, and the holding member does not rotate with respect to the pintail of the fastening pin, either.
  • the pintail is not twisted by the rotation of the rotary member, and it is thus possible to inhibit the pintail from breaking off due to the twist and to inhibit the pintail from breaking off before reaching a predetermined tensile load.
  • This makes it possible to cause the pintail to break off at the predetermined tensile load.
  • the rotation of the rotary member makes it possible to break off the pintail by swaging the collar to the fastening pin. Therefore, there is no need to install a hydraulic mechanism or the like, allowing the configuration of the swaging tool to be simple and accordingly the swaging tool to be more compact. Accordingly, a compact swaging tool that can be easily used even when the work space is limited can be provided.
  • the stroke mechanism be provided between the holding member and the swaging member, the stroke mechanism including a housing member configured to house the holding member therein, the rotary member provided between the housing member and the swaging member and configured to be screwed with the swaging member, and a low friction mechanism provided between the rotary member and the housing member and capable of absorbing the rotation of the rotary member, and that the rotation of the rotary member causes the swaging member to perform the expansion and contraction.
  • the rotation of the rotary member makes it possible to cause the swaging member screwed with the rotary member to perform the expansion and contraction without causing the swaging member to rotate.
  • a low friction mechanism between the rotary member and the housing member, it is possible to absorb the rotation of the rotary member using the low friction mechanism, which makes it possible to restrict the rotation of the holding member housed in the housing member.
  • examples of such a low friction mechanism include a bearing, a washer to which a low friction coating is applied, and a high-lubrication sheet, but the low friction mechanism is not particularly limited to those examples.
  • the stroke mechanism be provided between the holding member and the swaging member, the stroke mechanism including a housing member configured to house the holding member therein, the rotary member configured to be screwed with the housing member, and a movable member provided between the rotary member and the swaging member, the movable member being configured to come into contact with the rotary member and to be connected to the swaging member, and to perform the expansion and contraction together with the rotary member through the rotation of the rotary member, and that the movable member be locked with respect to the housing member so as to be able to perform the expansion and contraction while the rotation of the movable member is restricted with respect to the housing member.
  • the rotation of the rotary member causes the movable member, which is in contact with the rotary member, to perform the expansion and contraction, which allows the space between the holding member and the swaging member to expand and contract.
  • the rotation of the movable member with respect to the housing member is restricted, it is possible to restrict the rotation of the holding member, which is housed in the housing member, and the rotation of the swaging member, which is connected to the movable member.
  • the movable member include a locking claw configured to restrict the rotation of the movable member with respect to the housing member and to allow the movable member to perform the expansion and contraction with respect to the housing member, and that a locking groove configured to house the locking claw be formed in the housing member.
  • the stroke mechanism include a housing member configured to house the holding member therein, a fixing member configured to be fixed to the housing member, and the rotary member configured to be screwed with the fixing member as well as with the swaging member, that the rotary member and the swaging member be screwed with each other by one of a right-hand thread and a left-hand thread, and that the rotary member and the fixing member be screwed with each other by the other one of the right-hand thread and the left-hand thread.
  • the rotation of the rotary member makes it possible to cause the rotary member to perform the expansion and contraction without causing the fixing member screwed with the rotary member to rotate, and also makes it possible to cause the swaging member screwed with the rotary member to perform the expansion and contraction without causing the swaging member to rotate.
  • the rotary member and the swaging member are screwed with each other by the one of the right-hand thread and the left-hand thread, and the rotary member and the fixing member are screwed with each other by the other one of the right-hand thread and the left-hand thread, it is possible to offset the respective rotations, and it is thus possible to restrict the rotation of the holding member housed in the housing member and the swaging member.
  • the stroke mechanism include a first extending portion extending outwardly from a housing member, the housing member being provided between the holding member and the swaging member and configured to house the holding member therein, a second extending portion extending from the swaging member so as to face the first extending portion with a predetermined gap, a guide member extending from the first extending portion to the second extending portion through the gap, and the rotary member configured to be screwed with the guide member positioned in the gap, and that the rotation of the rotary member with respect to the guide member expand and contract a space between the first extending portion and the second extending portion.
  • rotating the rotary member to move the rotary member along the guide member makes it possible to expand and contract the space between the first extending portion and the second extending portion.
  • the rotation of the rotary member is not transmitted to the housing member and the swaging member, and it is thus possible to restrict the rotation of the holding member housed in the housing member and the swaging member.
  • the stroke mechanism include a first extending portion extending outwardly from an housing member, the housing member being provided between the holding member and the swaging member and configured to house the holding member therein, a second extending portion extending from the swaging member so as to face the first extending portion with a predetermined gap, a guide member extending from the first extending portion to the second extending portion through the gap, a drive shaft provided between the guide member and the holding member so as to extend from the first extending portion to the second extending portion through the gap, and the rotary member configured to be screwed with the drive shaft positioned in the gap, the rotation of the rotary member with respect to the drive shaft expanding and contracting a space between the first extending portion and the second extending portion.
  • disposing the guide member and the drive shaft adjacent to each other makes it possible to provide a guiding part and a driving part so that the guiding part and the driving part are offset with respect to each other.
  • the rigidity of the guide member is increased by making the guide member larger in order to apply a larger tensile load to the fastening pin, it is possible to suppress an increase in the dimension of the drive shaft in the axial direction. It is thus possible to fasten the fastening pin in a stable manner with a compact configuration.
  • the stroke mechanism preferably further includes a protruding portion that protrudes toward the swaging die and is housed in the swaging die.
  • the protruding portion preferably moves toward the swaging die so as to be pressed against the collar, when the space between the swaging member and the holding member is contracted by the rotation of the rotary member.
  • FIG. 1 is an outline configuration diagram schematically illustrating a lock bolt to be fastened by a swaging tool according to a first embodiment.
  • FIG. 2 is a cross-sectional view of the swaging tool according to the first embodiment.
  • a swaging tool 1 of the first embodiment is a tool for fastening a lock bolt 5 with respect to a pair of plate members 3a and 3b that are stacked together to form a portion to be fastened.
  • the lock bolt 5 will be described, which is fastened to the pair of plate members 3a and 3b by the swaging tool 1.
  • the lock bolt 5 includes a fastening pin 7 extending in the axial direction and a collar 8 that is to be swaged to the fastening pin 7.
  • the fastening pin 7 includes a pinhead 7a provided on one side in the axial direction, a pin main body 7b provided in a central section of the fastening pin 7, a pintail 7c provided on the other side in the axial direction.
  • a break-off portion 7d is provided between the pin main body 7b and the pintail 7c. The break-off portion 7d can break as a result of a predetermined tensile load being applied to each of the pin main body 7b and the pintail 7c.
  • This fastening pin 7 is inserted into a fastening hole 4, which is formed so as to penetrate through the pair of plate members 3a and 3b in the stacking direction thereof.
  • the pinhead 7a is positioned on the one plate member 3a side (the lower side in FIG. 1 ) and the pintail 7c is positioned on the other plate member 3b side (the upper side in FIG. 1 ), while sandwiching the pair of plate members 3a and 3b therebetween.
  • part of the pin main body 7b is positioned inside the fastening hole 4, and the remaining part is positioned on the other plate member 3b side (the upper side in FIG. 1 ).
  • the collar 8 is formed in a cylindrical shape and fitted from the pintail 7c side of the fastening pin 7.
  • the collar 8 fitted to the fastening pin 7 comes into contact with the plate member 3b as a result of being moved in the axial direction toward the plate member 3b (the pinhead 7a side) by the swaging tool 1, and swaged to the pin main body 7b in a state of being in contact with the plate member 3b.
  • the break-off portion 7d breaks as a result of the predetermined tensile load being applied to the fastening pin 7, and the pintail 7c is broken off and removed.
  • the swaging tool 1 will be described with reference to FIG. 2 .
  • part on the left side of an axial line L illustrates a contracted state of the swaging tool 1
  • part on the right side of the axial line L illustrates an expanded state of the swaging tool 1.
  • the swaging tool 1 includes a swaging member 11, a holding member 12, and a stroke mechanism 13.
  • the swaging member 11 has a bottomed cylindrical shape.
  • An inner thread groove 15 is formed on the inner circumferential surface of the swaging member 11. More specifically, the swaging member 11 includes a cylindrical portion 17, which has the inner thread groove 15 formed on the inner circumferential surface thereof, and a circular bottom portion 18 provided on the one side (the lower side in FIG. 2 ) of the cylindrical portion 17 in the axial direction.
  • the cylindrical portion 17 and the bottom portion 18 are integrally formed.
  • a swaging die 19 is formed in a central section of the bottom portion 18. The swaging die 19 swages the collar 8 as a result of the collar 8, which is fitted to the fastening pin 7, being press-fitted into the swaging die 19.
  • the inner bottom surface of the bottom portion 18 functions as a restricting surface that restricts the axial-direction movement of a rotary member 25 (described below), which is housed inside the cylindrical portion 17. Therefore, a state in which the swaging member 11 is in contact with the rotary member 25 on the restricting surface corresponds to a state in which the swaging tool 1 is most contracted.
  • the holding member 12 is a member that holds the pintail 7c of the fastening pin 7.
  • a chuck with a holding claw, or the like is applied as the holding member 12.
  • a holding hole 21 for holding the pintail 7c is formed in the holding member 12 on the one side (the lower side in FIG. 2 ) in the axial direction. Further, the holding member 12 is formed in a tapered shape that tapers toward the one side in the axial direction.
  • the stroke mechanism 13 is provided between the swaging member 11 and the holding member 12.
  • the rotation of the stroke mechanism 13 expands and contracts a space between the swaging member 11 and the holding member 12 in the axial direction.
  • the stroke mechanism 13 is configured so as to be able to restrict the rotation of the swaging member 11 and the holding member 12. More specifically, the stroke mechanism 13 includes the rotary member 25, a housing member 26, and a bearing (a low friction mechanism) 27.
  • the rotary member 25 is formed in a bottomed cylindrical shape, which is provided inside the swaging member 11.
  • An outer thread groove 31, which engages with the inner thread groove 15 of the swaging member 11, is formed on the outer circumferential surface of the rotary member 25.
  • the rotary member 25 includes a cylindrical portion 33, which has the outer thread groove 31 formed on the outer circumferential surface thereof, and a circular bottom portion 34 provided on the one side (the lower side in FIG. 2 ) of the cylindrical portion 33 in the axial direction.
  • the cylindrical portion 33 and the bottom portion 34 are integrally formed.
  • An insertion hole 35 is formed in a central section of the bottom portion 34.
  • the insertion hole 35 has a diameter a little larger than that of the swaging die 19, thereby enabling the fastening pin 7 and the swaged collar 8 to be inserted thereinto. Further, the outer bottom surface of the bottom portion 34 can be brought into contact with the inner bottom surface (the restricting surface) of the bottom portion 18 of the swaging member 11.
  • the bearing 27 is installed on the inner bottom surface of the bottom portion 34.
  • the rotary member 25 may be rotated by power transmitted from a power source (not illustrated), or may be rotated manually by using a jig, such as a wrench, a torque wrench, or the like.
  • the bearing 27, which is, for example, a thrust cylindrical roller bearing, is provided inside the rotary member 25.
  • This bearing 27 includes a pair of races 27a and 27b, and a cylindrical roller 27c, which is provided between the pair of races 27a and 27b as a rolling element.
  • the race (lower race) 27a on the one side is arranged on the inner bottom surface of the bottom portion 34 of the rotary member 25 and is rotated together with the rotation of the rotary member 25. Note that the lower race 27a may be fixed to the rotary member 25.
  • the race (upper race) 27b on the other side is arranged so as to face the lower race 27a while sandwiching the cylindrical roller 27c therebetween.
  • the upper race 27b is arranged with a predetermined gap with respect to the rotary member 25 provided on the outer side of the upper race 27b in the radial direction.
  • the upper race 27b is in a non-contact state with respect to the rotary member 25.
  • the housing member 26 is installed on the upper race 27b.
  • the housing member 26 houses the holding member 12 therein, and is installed on the upper race 27b. At this time, the housing member 26 may be fixed to the upper race 27b. Further, the housing member 26 is provided on the inner side of the rotary member 25, and an end surface of the housing member 26 on the other side (the upper side in FIG. 2 ) and an end surface of the rotary member 25 on the other side are configured to be flush with each other. The housing member 26 is arranged with a predetermined gap with respect to the rotary member 25 provided on the outer side of the housing member 26 in the radial direction. The housing member 26 is in a non-contact state with respect to the rotary member 25.
  • the housing member 26 is formed in a cylindrical shape as a result of a housing hole 38, which houses the holding member 12, being formed so as to penetrate through a central section of the housing member 26. Because the housing hole 38 has a complementary shape with the holding member 12, the housing hole 38 has a tapered shape that tapers toward the one side in the axial direction. Because the holding member 12, which is housed in the housing hole 38 of the housing member 26, and the housing hole 38 each have the tapered shape, the movement of the holding member 12 toward the one side in the axial direction is restricted, even when a load is applied relatively to the one side.
  • the fastening operation of the swaging tool 1 will be described in which the lock bolt 5 is fastened by using the above-described swaging tool 1.
  • the fastening pin 7 is inserted into the fastening hole 4 of the pair of plate members 3a and 3b, and the collar 8 is fitted to the pintail 7c side of the fastening pin 7.
  • the swaging tool 1 is in the most contracted state, as illustrated in the left-side part of FIG. 2 .
  • the swaging tool 1 being in this state is fitted to the pintail 7c of the fastening pin 7.
  • the pintail 7c side of the fastening pin 7 is inserted through the swaging die 19 of the swaging tool 1 and the insertion hole 35 of the rotary member 25, and further, the pintail 7c is held by the holding member 12, as a result of the pintail 7c being fitted into the holding hole 21 of the holding member 12 of the swaging tool 1.
  • the rotary member 25 is rotated.
  • the swaging tool 1 performs an expansion that causes a distance between the swaging member 11 and the holding member 12 in the axial direction to increase.
  • the swaging member 11 moves toward the plate member 3b. More specifically, when the rotary member 25 is rotated, the swaging member 11 moves in the axial direction toward the plate member 3b with respect to the rotary member 25.
  • the rotary member 25 is further rotated in a state in which the collar 8 is in contact with the plate member 3b.
  • the collar 8 is press-fitted into the swaging die 19 of the swaging member 11.
  • the collar 8 is swaged to the pin main body 7b of the fastening pin 7.
  • the rotary member 25 is further rotated in a state in which the collar 8 is swaged to the pin main body 7b.
  • the rotary member 25 is rotated, as a result of the swaging tool 1 further performing the expansion, each of the pin main body 7b and the pintail 7c is pulled in a direction of separating away from each other, and consequently, the predetermined tensile load is applied to the break-off portion 7d provided between the pin main body 7b and the pintail 7c.
  • the swaging tool 1 causes the pintail 7c of the fastening pin 7 to break off by applying the predetermined tensile load to the break-off portion 7d.
  • the swaging tool 1 is disconnected from the fastened lock bolt 5 in a state in which the broken-off pintail 7c is held by the holding member 12.
  • the swaging tool 1 which has been disconnected from the lock bolt 5, performs a contraction, which causes the distance between the swaging member 11 and the holding member 12 in the axial direction to decrease, by rotating the rotary member 25 in the opposite direction.
  • the contraction By performing the contraction, the swaging tool 1 obtains the most contracted state.
  • the inner bottom surface of the swaging member 11 and the outer bottom surface of the rotary member 25 come into contact with each other.
  • the swaging tool 1 returns to the state illustrated in the left-side part of FIG. 2 .
  • the rotation of the rotary member 25 of the stroke mechanism 13 makes it possible to expand and contract the space between the swaging member 11 and the holding member 12. Accordingly, because the rotation of the rotary member 25 can be converted to the expansion and contraction, it is possible to apply the tensile load to the pintail 7c, which can cause the pintail 7c to break off.
  • the stroke mechanism 13 restricts the rotation of the swaging member 11 and the holding member 12 resulting from the rotation of the rotary member 25, the swaging member 11 does not rotate with respect to the collar 8, and the holding member 12 does not rotate with respect to the pintail 7c of the fastening pin 7, either.
  • the pintail 7c is not twisted by the rotation of the rotary member 25, and it is possible to inhibit the pintail 7c from breaking off due to the twist. Further, because it is possible to inhibit the pintail 7c from breaking off before reaching the predetermined tensile load, it is possible to cause the pintail 7c to break off at the predetermined tensile load. As described above, because it is possible to cause the pintail 7c to break off by swaging the collar 8 to the fastening pin 7 as a result of rotating the rotary member 25, there is no need to install a hydraulic mechanism or the like in the swaging tool 1. It is thus possible to make the configuration of the swaging tool 1 simple, and accordingly, make the swaging tool 1 more compact. As a result, it is possible to provide the compact swaging tool 1 that can be used even when the work space is limited.
  • the rotation of the rotary member 25 makes it possible to expand and contract the space between the swaging member 11 and the holding member 12, without causing the swaging member 11, which is screwed with the rotary member 25, to rotate. Further, by providing the bearing 27 between the rotary member 25 and the housing member 26, it is possible to absorb the rotation of the rotary member 25 by the bearing 27. As a result, it is possible to restrict the rotation of the holding member 12, which is housed in the housing member 26.
  • the present invention is not limited to this configuration, and an angular bearing, which receives the load in the thrust and radial directions, may be adopted.
  • the angular bearing may be provided in any position, as long as the angular bearing is provided in a position between the rotary member 25 and the housing member 26.
  • the configuration of the first embodiment is not limited to a bearing, but any low friction mechanism may be used, such as a washer to which a low-friction coating has been applied, or a high-lubrication sheet.
  • Second embodiment by providing a groove or the like in the tool main body, for example, only bearing balls may be directly placed therein.
  • FIG. 3 is a cross-sectional view of the swaging tool according to the second embodiment.
  • the swaging tool 1 according to the first embodiment restricts the rotation of the swaging member 11 and the holding member 12 by absorbing the rotation of the rotary member 25 by using the bearing 27.
  • the swaging tool 50 according to the second embodiment restricts the rotation of a swaging member 51 and the holding member 12 by using a locking claw 84.
  • the swaging tool 50 according to the second embodiment will be described below. Note that in FIG. 3 , in the same manner as in FIG. 2 , part on the left side of the axial line L illustrates a contracted state of the swaging tool 50, and part on the right side of the axial line L illustrates an expanded state of the swaging tool 50.
  • the swaging tool 50 includes the swaging member 51, the holding member 12, and a stroke mechanism 53. Note that because the holding member 12 has the same configuration as in the first embodiment, a description thereof is omitted here.
  • the swaging member 51 is formed in a disc-shape, and a swaging die 56 is formed in a central section of the swaging member 51.
  • the swaging die 56 sewages the collar 8 as a result of the collar 8, which is fitted to the fastening pin 7, being press-fitted into the swaging die 56.
  • a movable member 67 which will be described below, is connected to the other side of the swaging member 51 (the upper side in FIG. 3 ).
  • the stroke mechanism 53 is provided between the swaging member 51 and the holding member 12.
  • the rotation of the stroke mechanism 53 expands and contracts a space between the swaging member 51 and the holding member 12 in the axial direction.
  • the stroke mechanism 53 is configured so as to be able to restrict the rotation of the swaging member 51 and the holding member 12. More specifically, the stroke mechanism 53 includes a rotary member 65, a housing member 66, and the movable member 67.
  • the housing member 66 houses the holding member 12 therein, and an outer thread groove 71 is formed on the outer circumferential surface of the housing member 66. More specifically, the housing member 66 includes a cylindrical portion 75, which has the outer thread groove 71 formed on the outer circumferential surface thereof, and a ring-shaped flange portion 76 provided on the other side (the upper side in FIG. 3 ) of the cylindrical portion 75 in the axial direction. The cylindrical portion 75 and the flange portion 76 are integrally formed.
  • the cylindrical portion 75 is formed in a cylindrical shape, as a result of a housing hole 78, which houses the holding member 12, being formed so as to penetrate through a central section of the cylindrical portion 75. Because the housing hole 78 has a complementary shape with the holding member 12, the housing hole 78 has a tapered shape that tapers toward the one side in the axial direction. Because the holding member 12, which is housed in the housing hole 78 of the housing member 66, and the housing hole 78 each have the tapered shape, the movement of the holding member 12 toward the one side (the lower side in FIG. 3 ) in the axial direction is restricted, even when a load is applied relatively to the one side. Further, a locking groove 79 is formed in the cylindrical portion 75.
  • the locking groove 79 houses the locking claw 84 of the movable member 67 (described below).
  • the locking groove 79 is formed so as to extend in the axial direction with respect to the outer circumferential surface of the cylindrical portion 75.
  • a plurality of the locking grooves 79 are formed side by side at predetermined intervals in the circumferential direction of the cylindrical portion 75.
  • the flange portion 76 is provided so as to protrude toward the outer side in the radial direction with respect to the cylindrical portion 75, while being formed in a ring-shape.
  • a surface of the flange portion 76 on the one side (the lower side in FIG. 3 ) in the axial direction functions as a restricting surface that restricts the movement of the rotary member 65 in the axial direction. Therefore, a state in which the housing member 66 is in contact with the rotary member 65 on the restricting surface corresponds to a state in which the swaging tool 50 is most contracted.
  • the rotary member 65 is provided on the outer side of the housing member 66, while being formed in a cylindrical shape.
  • An inner thread groove 81 which engages with the outer thread groove 71 of the housing member 66, is formed on the inner circumferential surface of the rotary member 65.
  • An end surface of the rotary member 65 on the other side (the upper side in FIG. 3 ) in the axial direction is formed as a surface that comes into contact with the restricting surface of the flange portion 76.
  • an end surface of the rotary member 65 on the one side (the lower side in FIG. 3 ) is formed as a surface that comes into contact with a contact portion of the movable member 67 (described below).
  • the movable member 67 is provided between the swaging member 51 and the rotary member 65.
  • the movable member 67 includes the contact portion 83, with which the rotary member 65 comes into contact, and the locking claw 84 that extends from the contact portion 83 toward the other side in the axial direction.
  • the contact portion 83 and the locking claw 84 are integrally formed.
  • the contact portion 83 is formed in a ring-shape, and an insertion hole 85 is formed in a central section thereof.
  • the insertion hole 85 has a diameter a little larger than that of the swaging die 56, thereby enabling the fastening pin 7 and the swaged collar 8 to be inserted thereinto. Further, the end surface of the rotary member 65 on the one side comes into contact with an outer circumferential edge portion of a surface of the contact portion 83 on the other side in the axial direction. Because the contact portion 83 is connected to the swaging member 51, the swaging member 51 can move together with the movable member 67.
  • the locking claw 84 is housed in the locking groove 79 formed on the outer circumferential surface of the housing member 66.
  • the locking claw 84 restricts the rotation of the movable member 67 with respect to the housing member 66, and at the same time, allows the movement of the movable member 67 in the axial direction with respect to the housing member 66.
  • This locking claw 84 is connected to the surface of the contact portion 83 on the other side, and a plurality of the locking claws 84 are formed side by side at predetermined intervals in the circumferential direction of the contact portion 83.
  • an engaging groove which engages with the inner thread groove 81 of the rotary member 65, may be formed on the outer circumferential surface of the locking claw 84, namely, on the inner circumferential surface of the rotary member 65.
  • this engaging groove need not necessarily be formed.
  • the swaging tool 50 is fastened by using the above-described swaging tool 50.
  • the fastening pin 7 is inserted into the fastening hole 4 of the pair of plate members 3a and 3b, and the collar 8 is fitted to the pintail 7c side of the fastening pin 7.
  • the swaging tool 50 is in the most contracted state, as illustrated in the lest-side part of FIG. 3 .
  • the swaging tool 50 in this state is fitted to the pintail 7c of the fastening pin 7.
  • the pintail 7c side of the fastening pin 7 is inserted through the swaging die 56 of the swaging tool 50 and the insertion hole 85 of the movable member 67, and the pintail 7c is held by the holding member 12 as a result of the pintail 7c being fitted into the holding hole 21 of the holding member 12 of the swaging tool 50.
  • the rotary member 65 is rotated.
  • the swaging tool 50 performs an expansion that causes a distance between the swaging member 51 and the holding member 12 in the axial direction to increase.
  • the swaging member 51 moves toward the plate member 3b. More specifically, when the rotary member 65 is rotated, the rotary member 65 moves in the axial direction toward the plate member 3b with respect to the housing member 66.
  • the rotary member 65 is further rotated in a state in which the collar 8 is in contact with the plate member 3b.
  • the collar 8 is press-fitted into the swaging die 56 of the swaging member 51.
  • the collar 8 is swaged to the pin main body 7b of the fastening pin 7.
  • the rotary member 65 is further rotated in a state in which the collar 8 is swaged to the pin main body 7b.
  • the rotary member 65 is rotated, as a result of the swaging tool 50 further performing the expansion, each of the pin main body 7b and the pintail 7c is pulled in the direction of separating away from each other, and consequently, the predetermined tensile load is applied to the break-off portion 7d provided between the pin main body 7b and the pintail 7c.
  • the swaging tool 50 causes the pintail 7c of the fastening pin 7 to break off by applying the predetermined tensile load to the break-off portion 7d.
  • the swaging tool 50 is disconnected from the fastened lock bolt 5, in a state in which the broken-off pintail 7c is held by the holding member 12.
  • the swaging tool 50 which has been disconnected from the lock bolt 5, performs a contraction, which causes the distance between the swaging member 51 and the holding member 12 in the axial direction to decrease, by rotating the rotary member 65 in the opposite direction.
  • the contraction By performing the contraction, the swaging tool 50 obtains the most contracted state, as a result of the flange portion 76 of the housing member 66 and the surface of the rotary member 65 on the other side coming into contact with each other. Then, by removing the broken-off pintail 7c held by the holding member 12, the swaging tool 50 returns to the state illustrated in the left-side part of FIG. 3 .
  • the rotation of the rotary member 65 makes it possible to cause the movable member 67 to come into contact with the rotary member 65 and to expand and contract the space between the swaging member 51 and the holding member 12.
  • the rotation of the movable member 67 with respect to the housing member 66 can be restricted by the locking claws 84 provided on the movable member 67, it is possible to restrict the rotation of the holding member 12 housed in the housing member 66 and the rotation of the swaging member 51 connected to the movable member 67.
  • FIG. 4 is a cross-sectional view of the swaging tool according to the third embodiment.
  • the swaging tool 100 according to the third embodiment restricts the rotation of a swaging member 101 and the holding member 12 by absorbing the rotation of a rotary member 125 by using right and left threads.
  • the swaging tool 100 according to the third embodiment will be described below. Note that in FIG.
  • part on the left side of the axial line L illustrates a contracted state of the swaging tool 100
  • part on the right side of the axial line L illustrates an expanded state of the swaging tool 100.
  • the swaging tool 100 includes the swaging member 101, the holding member 12, and a stroke mechanism 103. Note that, because the holding member 12 has the same configuration as in the first embodiment, a description thereof is omitted here.
  • the swaging member 101 has a bottomed cylindrical shape, and an inner right-hand thread groove 115 is formed on the inner circumferential surface of the swaging member 101. More specifically, the swaging member 101 includes a cylindrical portion 117, which has the inner right-hand thread groove 115 formed on the inner circumferential surface thereof, and a circular bottom portion 118 provided on the one side (the lower side in FIG. 4 ) of the cylindrical portion 117 in the axial direction. The cylindrical portion 117 and the bottom portion 118 are integrally formed. A swaging die 119 is formed in a central section of the bottom portion 118. The swaging die 119 sewages the collar 8 as a result of the collar 8, which is fitted to the fastening pin 7, being press-fitted into the swaging die 119.
  • the stroke mechanism 103 is provided between the swaging member 101 and the holding member 12.
  • the rotation of the stroke mechanism 103 expands and contracts a space between the swaging member 101 and the holding member 12 in the axial direction.
  • the stroke mechanism 13 is configured so as to be able to restrict the rotation of the swaging member 101 and the holding member 12. More specifically, the stroke mechanism 103 includes the rotary member 125, a housing member 126, and a cylindrical member (fixing member) 127.
  • the housing member 126 houses the holding member 12 therein. More specifically, the housing member 126 includes a cylindrical portion 135, and a ring-shaped flange portion 136 provided on the other side (the upper side in FIG. 4 ) of the cylindrical portion 135 in the axial direction. The cylindrical portion 135 and the flange portion 136 are integrally formed.
  • the cylindrical portion 135 is formed in a cylindrical shape as a result of a housing hole 138, which houses the holding member 12, being formed so as to penetrate through a central section of the cylindrical portion 135. Because the housing hole 138 has a complementary shape with the holding member 12, the housing hole 138 has a tapered shape that tapers toward the one side in the axial direction. Because the holding member 12, which is housed in the housing hole 138 of the housing member 126, and the housing hole 138 each have the tapered shape, the movement of the holding member 12 toward the one side (the lower side in FIG. 4 ) in the axial direction is restricted, even when a load is applied relatively to the one side.
  • the flange portion 136 is provided so as to protrude toward the outer side in the radial direction with respect to the cylindrical portion 135, while being formed in a ring-shape.
  • the cylindrical member 127 is connected to a surface of the flange portion 136 on the one side (the lower side in FIG. 4 ) in the axial direction.
  • An inner left-hand thread groove 141 is formed on the inner circumferential surface of the cylindrical member 127.
  • the other side (the upper side in FIG. 4 ) of the cylindrical member 127 in the axial direction is connected to the flange portion 136 of the housing member 126.
  • the rotary member 125 is provided on the outer side of the cylindrical portion 135 of the housing member 126, while being formed in a cylindrical shape.
  • the rotary member 125 includes a right-hand thread side cylindrical portion 151, which has the outer right-hand thread groove 145 formed on the outer circumferential surface thereof, a left-hand thread side cylindrical portion 152, which has the outer left-hand thread groove 146 formed on the outer circumferential surface thereof, and a protrusion portion 153 provided between the right-hand thread side cylindrical portion 151 and the left-hand thread side cylindrical portion 152.
  • the right-hand thread side cylindrical portion 151, the left-hand thread side cylindrical portion 152, and the protrusion portion 153 are integrally formed.
  • the right-hand thread side cylindrical portion 151 is provided on the one side of the rotary member 125 in the axial direction, while being provided between the cylindrical portion 117 of the swaging member 101 and the cylindrical portion 135 of the housing member 126.
  • This right-hand thread side cylindrical portion 151 is provided so as to have a predetermined gap with respect to the housing member 126 provided on the inner side thereof.
  • the right-hand thread side cylindrical portion 151 is in a non-contact state with the housing member 126.
  • the right-hand thread side cylindrical portion 151 is screwed with the swaging member 101 on the outer side thereof.
  • the left-hand thread side cylindrical portion 152 is provided on the other side of the rotary member 125 in the axial direction, while being provided between the cylindrical portion 127 and the cylindrical portion 135 of the housing member 126. This left-hand thread side cylindrical portion 152 is provided so as to have a predetermined gap with respect to the housing member 126 on the inner side thereof. The left-hand thread side cylindrical portion 152 is in a non-contact state with the housing member 126. At the same time, the left-hand thread side cylindrical portion 152 is screwed with the cylindrical member 127 on the outer side thereof.
  • the protrusion portion 153 is provided in a central section of the rotary member 125 in the axial direction, while being formed in a ring-shape and protruding toward the outer side of the rotary member 125 in the radial direction.
  • This protrusion portion 153 is provided so as to have a predetermined gap with respect to the housing member 126 on the inner side thereof.
  • the protrusion portion 153 is in a non-contact state with the housing member 126.
  • a surface of the protrusion portion 153 on the one side (the lower side in FIG. 4 ) in the axial direction is formed as a surface that comes into contact with the swaging member 101, and a surface of the protrusion portion 153 on the other side (the upper side in FIG.
  • the swaging tool 100 is fastened by using the above-described swaging tool 100.
  • the fastening pin 7 is inserted into the fastening hole 4 of the pair of plate members 3a and 3b, and the collar 8 is fitted to the pintail 7c side of the fastening pin 7.
  • the swaging tool 100 is in the most contracted state, as illustrated in the left-side part of FIG. 4 .
  • the swaging tool 100 in this state is fitted to the pintail 7c of the fastening pin 7.
  • the pintail 7c side of the fastening pin 7 is inserted through the swaging die 119 of the swaging tool 100, and further, the pintail 7c is held by the holding member 12 as a result of the pintail 7c being fitted into the holding hole 21 of the holding member 12 of the swaging tool 100.
  • the rotary member 125 is rotated.
  • the swaging tool 100 performs an expansion that causes a distance between the swaging member 101 and the holding member 12 in the axial direction to increase.
  • the swaging member 101 moves toward the plate member 3b. More specifically, when the rotary member 125 is rotated, the swaging member 101 moves in the axial direction toward the plate member 3b with respect to the right-hand thread side cylindrical portion 151 of the rotary member 125.
  • the left-hand thread side cylindrical portion 152 of the rotary member 125 moves in the axial direction toward the plate member 3b with respect to the cylindrical member 127.
  • the rotating rotary member 125 is screwed with the swaging member 101 by a right-hand thread and is screwed with the cylindrical member 127 by a left-hand thread, the swaging member 101 and the cylindrical member 127 do not rotate, even when the rotary member 125 is rotated. Accordingly, the housing member 126 connected to the cylindrical member 127 does not rotate, and the holding member 12 housed in the housing member 126 does not rotate, either.
  • the rotary member 125 is further rotated in a state in which the collar 8 is in contact with the plate member 3b.
  • the collar 8 is press-fitted into the swaging die 119 of the swaging member 101.
  • the collar 8 is swaged to the pin main body 7b of the fastening pin 7 as a result of being press-fitted into the swaging die 119.
  • the rotary member 125 is further rotated in a state in which the collar 8 is swaged to the pin main body 7b.
  • the rotary member 125 is rotated, as a result of the swaging tool 100 further performing the expansion, each of the pin main body 7b and the pintail 7c is pulled in the direction of separating away from each other, and consequently, the predetermined tensile load is applied to the break-off portion 7d provided between the pin main body 7b and the pintail 7c.
  • the swaging tool 100 causes the pintail 7c of the fastening pin 7 to break off by applying the predetermined tensile load to the break-off portion 7d.
  • the swaging tool 100 is disconnected from the fastened lock bolt 5 in a state in which the broken-off pintail 7c is held by the holding member 12.
  • the swaging tool 100 which has been disconnected from the lock bolt 5, performs a contraction, which causes the distance between the swaging member 101 and the holding member 12 in the axial direction to decrease, by rotating the rotary member 125 in the opposite direction.
  • the contraction By performing the contraction, the swaging tool 100 obtains the most contracted state as a result of the swaging member 101 and the cylindrical member coming into contact with the protrusion portion 153 of the rotary member 125. Then, by removing the broken-off pintail 7c held by the holding member 12, the swaging tool 100 returns to the state illustrated in the left-side part of FIG. 4 .
  • the rotation of the rotary member 125 makes it possible to expand and contract the space between the swaging member 101 and the holding member 12 without causing the swaging member 101 and the cylindrical member 127 to rotate, both of which are screwed with the rotary member 125. Further, because it is possible to offset the rotation of the rotary member 125 by forming the right-hand thread on the one side of the rotary member 125 in the axial direction and the left-hand thread on the other side of the rotary member 125 in the axial direction, it is possible to restrict the rotation of the holding member 12 housed in the housing member 126 and the rotation of the swaging member 101.
  • FIG. 5 is a cross-sectional view of the swaging tool according to the fourth embodiment. Note that in the fourth embodiment also, in order to avoid redundant descriptions, descriptions will be given only for structural elements different from those of the first to third embodiments, and the same reference numerals will be assigned to structural elements having the same configuration as those of the first to third embodiments.
  • the stroke mechanisms 13, 53, and 103 are respectively provided between the swaging members 11, 51, and 101 and the holding member 12.
  • a stroke mechanism 163 is provided in a different position from those of the first to third embodiments.
  • the swaging tool 160 according to the fourth embodiment will be described below. Note that the swaging tool 160 in a contracted state is illustrated in FIG. 5 .
  • the swaging tool 160 includes a swaging member 161, the holding member 12, and the stroke mechanism 163. Note that because the holding member 12 has the same configuration as in the first embodiment, a description thereof is omitted here.
  • the swaging member 161 is formed in a plate-shape, and a swaging die 165 is formed so as to penetrate through the swaging member 161.
  • the swaging die 165 sewages the collar 8 as a result of the collar 8, which is fitted to the fastening pin 7, being press-fitted into the swaging die 165.
  • a second extending portion 171 is integrally provided in the swaging member 161.
  • the second extending portion 171 is provided so as to extend from the swaging member 161.
  • a fastening hole 166 is formed in the second extending portion 171. This second extending portion 171 constitutes part of the stroke mechanism 163 which will be described below.
  • a penetrating direction of the swaging die 165 and a penetrating direction of the fastening hole 166 are the same direction, and the swaging die 165 and the fastening hole 166 are formed side by side with each other.
  • the second extending portion 171 is integrally formed with the swaging member 161 in the fourth embodiment, the present invention is not limited to this embodiment, and the second extending portion 171 and the swaging member 161 may be formed separately.
  • the stroke mechanism 163 is provided adjacent to the swaging member 161 and the holding member 12.
  • the rotation of the stroke mechanism 163 expands and contracts a space between the swaging member 161 and the holding member 12 in the axial direction.
  • the stroke mechanism 163 is configured so as to be able to restrict the rotation of the swaging member 161 and the holding member 12. More specifically, the stroke mechanism 163 includes the above-described second extending portion 171, a housing member 172, a first extending portion 173, the guide screw rod 174, a rotary member 175, and a restricting member 176.
  • the housing member 172 houses the holding member 12 therein. More specifically, the housing member 172 includes a cylindrical portion 181, and a ring-shaped protruding portion 182 that is provided on the one side (the lower side in FIG. 5 ) of the cylindrical portion 181 in the axial direction. The cylindrical portion 181 and the protruding portion 182 are integrally formed.
  • the cylindrical portion 181 is formed in a cylindrical shape as a result of a housing hole 188, which houses the holding member 12, being formed so as to penetrate through a central section of the cylindrical portion 181. Because the housing hole 188 has a complementary shape with the holding member 12, the housing hole 188 has a tapered shape that tapers toward the one side in the axial direction. Because the holding member 12, which is housed in the housing hole 188 of the housing member 172, and the housing hole 188 each have the tapered shape, the movement of the holding member 12 toward the one side (the lower side in FIG. 5 ) in the axial direction is restricted, even when a load is applied relatively to the one side.
  • the protruding portion 182 is provided so as to protrude from the one side of the cylindrical portion 181 in the axial direction toward the swaging die 165 of the swaging member 161.
  • the protruding portion 182 is formed in a ring-shape as a result of an insertion hole 189, through which the pintail 7c of the fastening pin 7 is inserted, being formed in a central section of the protruding portion 182.
  • the insertion hole 189 is communicated with the housing hole 188 on the other side in the axial direction and communicated with the swaging die 165 on the one side in the axial direction.
  • the outer diameter of the protruding portion 182 is smaller than the inner diameter of the swaging die 165.
  • the inner diameter of the protruding portion 182 (namely, the diameter of the insertion hole 189) is larger than the pintail 7c of the fastening pin 7.
  • This protruding portion 182 can be brought into contact with the collar 8, when a space between the holding member 12 and the swaging member 161 is contracted.
  • first extending portion 173 is integrally provided in the housing member 172.
  • the first extending portion 173 is provided so as to extend from the other side (the upper side in FIG. 5 ) of the cylindrical portion 181 in the axial direction toward the outer side of the cylindrical portion 181 in the radial direction. Further, the first extending portion 173 is provided so as to face the second extending portion 171 in the axial direction.
  • a guide hole 191 is formed so as to penetrate through the first extending portion 173 in the same direction as the axial direction of the cylindrical portion 182. At this time, the guide hole 191 is formed so as to face the fastening hole 166 of the swaging member 161.
  • the guide screw rod 174 is inserted through the guide hole 191.
  • a space (gap) 180 which can house the rotary member 175 and the restricting member 176 (both described below), is formed between the first extending portion 173 and the second extending portion 171.
  • the guide screw rod 174 which is a rod-shaped member, has a thread groove formed on the outer circumferential surface thereof.
  • the guide screw rod 174 is provided extending from the first extending portion 173 to the second extending portion 171 through the space 180. More specifically, the guide screw rod 174 is fixed as a result of being inserted through the guide hole 191 of the first extending portion 173 and having its one side (the lower side in Fig. 5 ) in the axial direction fastened to the fastening hole 166.
  • the restricting member 176 is attached to the guide screw rod 174, which is positioned in the space 180 provided between the first extending portion 173 and the second extending portion 171.
  • the restricting member 176 is constituted by a nut, for example, and suppresses loosening of the guide screw rod 174 with respect to the fastening hole 166, as a result of being screwed with the one side (the lower side in FIG. 5 ) of the guide screw rod 174 in the axial direction.
  • the rotary member 175 is attached to the guide screw rod 174, which is positioned in the space 180 provided between the first extending portion 173 and the second extending portion 171.
  • the rotary member 175 is constituted by a nut, for example, in the same manner as the restricting member 176, and is screwed with the other side (the lower side in FIG. 5 ) of the guide screw rod 174 in the axial direction, namely, screwed with the guide screw rod 174 positioned between the restricting member 176 and the first extending portion 173.
  • This rotary member 175 is rotated to come into contact with the first extending portion 173 and then further rotated to cause the first extending portion 173 to move relatively away from the second extending portion 171.
  • the swaging tool 160 is fastened by using the above-described swaging tool 160.
  • the fastening pin 7 is inserted into the fastening hole 4 of the pair of plate members 3a and 3b, and the collar 8 is fitted to the pintail 7c side of the fastening pin 7.
  • the swaging tool 160 is in the most contracted state, as illustrated in FIG. 5 .
  • the swaging tool 160 in this state is fitted to the pintail 7c of the fastening pin 7.
  • the pintail 7c side of the fastening pin 7 is inserted through the swaging die 165 of the swaging tool 160 and the insertion hole 189 of the housing member 172, and the pintail 7c is held by the holding member 12 as a result of the pintail 7c being fitted into the holding hole 21 of the holding member 12 of the swaging tool 160.
  • the rotary member 175 is rotated.
  • the swaging tool 160 performs an expansion that causes a distance between the swaging member 161 and the holding member 12 in the axial direction to increase.
  • the swaging member 161 moves toward the plate member 3b. More specifically, when the rotary member 175 is rotated, the rotary member 175 moves toward the first extending portion 173 along the guide screw rod 174 and then comes into contact with the first extending portion 173.
  • the rotary member 175 is further rotated to cause the guide screw rod 174 to move so as to expand the space 180 provided between the first extending portion 173 and the second extending portion 171 in the axial direction. Accordingly, the rotating rotary member 175 causes the second extending portion 171 fixed to the guide screw rod 174 to move away from the first extending portion 173.
  • the swaging member 161 moves in the axial direction toward the plate member 3b.
  • the swaging member 161 comes into contact with the collar 8 fitted to the pintail 7c side, thereby pushing the collar 8 toward the plate member 3b.
  • the collar 8, which is pushed toward the plate member 3b comes into contact with the plate member 3b.
  • the collar 8, which is in contact with the plate member 3b is positioned at the pin main body 7b of the fastening pin 7.
  • the rotary member 175 is further rotated in a state in which the collar 8 is in contact with the plate member 3b.
  • the collar 8 is press-fitted into the swaging die 165 of the swaging member 161.
  • the collar 8 is swaged to the pin main body 7b of the fastening pin 7 as a result of being press-fitted into the swaging die 165.
  • the rotary member 175 is further rotated in a state in which the collar 8 is swaged to the pin main body 7b.
  • the rotary member 175 is rotated, as a result of the swaging tool 160 further performing the expansion, each of the pin main body 7b and the pintail 7c is pulled in the direction of separating away from each other, and consequently, the predetermined tensile load is applied to the break-off portion 7d provided between the pin main body 7b and the pintail 7c.
  • the swaging tool 160 causes the pintail 7c of the fastening pin 7 to break off by applying the predetermined tensile load to the break-off portion 7d.
  • the swaging tool 160 is disconnected from the fastened lock bolt 5 in a state in which the broken-off pintail 7c is held by the holding member 12.
  • the swaging tool 160 which has been disconnected from the lock bolt 5, performs a contraction, which causes the distance between the swaging member 161 and the holding member 12 in the axial direction to decrease, by rotating the rotary member 175 in the opposite direction.
  • the housing member 172 moves toward the swaging member 161 when the rotary member 175 is rotated in the opposite direction.
  • the protruding portion 182 of the housing member 172 approaches the swaging die 165 of the swaging member 161 and then comes into contact with the swaged collar 8.
  • the rotation of the rotary member 175 makes it possible to expand and contract the space between the swaging member 161 and the holding member 12 without causing the swaging member 161 and the housing member 172 to rotate, both of which are screwed with the rotary member 175.
  • the rotation of the rotary member 175 is not transmitted to the housing member 172 and the swaging member 161, and it is thus possible to restrict the rotation of the holding member 12 housed in the housing member 172 and the rotation of the swaging member 161.
  • the housing member 172 As a result of providing the protruding portion 182 in the housing member 172, it is possible to easily pull out the swaging member 161, which has been fitted with the collar 8, by causing the housing member 172 to move toward the swaging member 161 in a state in which the collar 8 is in contact with the protruding portion 182.
  • FIG. 6 is a cross-sectional view of the swaging tool according to the fifth embodiment.
  • the swaging tool 200 according to the fifth embodiment is configured by adding the protruding portion 182 of the fourth embodiment to the swaging tool 1 of the first embodiment.
  • the swaging tool 200 according to the fifth embodiment will be described below. Note that in FIG. 6 , in the same manner as in FIG. 2 , part on the left side of the axial line L illustrates a contracted state of the swaging tool 200, and part on the right side of the axial line L illustrates an expanded state of the swaging tool 200.
  • the swaging tool 200 is configured by adding a protruding portion 201, which is provided on the inner circumferential surface of the insertion hole 35 of the rotary member 25, to the configuration of the swaging tool 1 according to the first embodiment. More specifically, the protruding portion 201 is provided so as to protrude from the bottom portion 34 toward the swaging die 19 of the swaging member 11. The protruding portion 201 is formed in a ring-shape as a result of an insertion hole 202, through which the pintail 7c of the fastening pin 7 is inserted, being formed in a central section of the protruding portion 201.
  • the diameter of the insertion hole 202 is smaller than that of the insertion hole 35.
  • the insertion hole 202 is communicated with the housing hole 21, via the bearing 27, on the other side in the axial direction and communicated with the swaging die 19 on the one side in the axial direction.
  • the outer diameter of the protruding portion 201 is smaller than the inner diameter of the swaging die 19. Meanwhile, the inner diameter of the protruding portion 201 (namely, the diameter of the insertion hole 202) is larger than the pintail 7c of the fastening pin 7. This protruding portion 201 can be brought into contact with the collar 8, when a space between the holding member 12 and the swaging member 11 is contracted.
  • the swaging tool 200 which is configured in the above-described manner, causes the rotary member 25 to approach the swaging member 11 by rotating the rotary member 25 in the opposite direction in a state in which the collar 8 is press-fitted into the swaging die 19 of the swaging member 11.
  • the protruding portion 201 of the rotary member 25 comes into contact with the swaged collar 8.
  • the rotary member 25 moves toward the swaging member 11 in a state in which the protruding portion 201 is in contact with the collar 8, because the position of the rotary member 25 is restricted, the swaging member 11 moves in the direction in which the collar 8 is pulled out.
  • the collar 8 is removed from the swaging member 11.
  • the protruding portion 182 of the fourth embodiment or the protruding portion 201 of the fifth embodiment may be applied to the second embodiment or the third embodiment, and further may also be applied to a sixth embodiment which will be described below.
  • the protruding portion is preferably provided in the housing member 66 in the same manner as in the fourth embodiment.
  • the protruding portion is preferably provided in the housing member 126 in the same manner as in the fourth embodiment.
  • FIG. 7 is an external perspective view of the swaging tool according to the sixth embodiment. Note that in the sixth embodiment also, in order to avoid redundant descriptions, descriptions will be given only for structural elements different from those of the first to fifth embodiments, and the same reference numerals will be assigned to structural elements having the same configuration as those of the first to fifth embodiments.
  • the stroke mechanism 163 is provided adjacent to the swaging member 161 and the holding member 12, and the expansion is performed while guiding the first extending portion 173 and the second extending portion 171 to move relatively away from each other using the guide screw rod 174 and the rotary member 175 of the stroke mechanism 163.
  • a stroke mechanism 211 is provided adjacent to the swaging member 161 and the holding member 12, and the stroke mechanism 211 is configured so that a guiding part, which is formed by the first extending portion 173 and the second extending portion 171, and a driving part, which is related to the expansion, are offset with respect to each other.
  • the swaging tool 210 includes the swaging member 161, the holding member 12, and the stroke mechanism 211. Note that because the holding member 12 and the swaging member 161 each have the same configuration as in the fourth embodiment, descriptions thereof are omitted here.
  • the stroke mechanism 211 is provided adjacent to the swaging member 161 and the holding member 12.
  • the rotation of the stroke mechanism 211 expands and contracts the space between the swaging member 161 and the holding member 12 in the axial direction.
  • the stroke mechanism 211 is configured so as to be able to restrict the rotation of the swaging member 161 and the holding member 12. More specifically, the stroke mechanism 211 includes a second extending portion 215, a housing member 216, a first extending portion 217, a guide member 218, a screw shaft (drive shaft) 219, and a rotary member 220.
  • the second extending portion 215 is provided so as to extend outwardly from the swaging member 161 and is integrally formed with the swaging member 161.
  • the guide member 218 and the screw shaft 219 are attached to this second extending portion 215.
  • the screw shaft 219 is attached to the second extending portion 215, adjacent to the swaging member 161, and the guide member 218 is attached to the second extending portion 215, remote from the swaging member 161 while sandwiching the screw shaft 219 between the guide member 218 and the swaging member 161.
  • a fastening hole (not illustrated), to which the screw shaft 219 is attached, is formed in the second extending portion 215, and one end portion of the screw shaft 219 in the axial direction is fastened to this fastening hole.
  • the present invention is not limited to this embodiment, and the second extending portion 215 and the swaging member 161 may be formed separately.
  • the housing member 216 is the same as the housing member 172 of the fourth embodiment, a description thereof is omitted here. Then, the first extending portion 217 is integrally provided in the housing member 216.
  • the first extending portion 217 is provided so as to extend outwardly from the housing member 216. Further, the first extending portion 217 is provided so as to face the second extending portion 215. A guide hole 223, through which the guide member 218 is inserted, and a through hole 224, through which the screw shaft 219 is inserted, are formed in the first extending portion 217. The guide hole 223 and the through hole 224 are formed so as to penetrate through the first extending portion 217, while having the axial direction thereof aligned with the direction in which the first extending portion 217 and the second extending portion 215 face each other.
  • the through hole 224 is formed in the first extending portion 217, adjacent to the housing member 216, and the guide hole 223 is formed in the first extending portion 217, remote from the housing member 216 while sandwiching the through hole 224 between the guide hole 223 and the housing member 216.
  • the through hole 224 faces the fastening hole, which is formed in the first extending portion 217, and the screw shaft 219, which is fastened to the fastening hole, is inserted through the through hole 224.
  • the guide member 218, which is attached to the second extending portion is inserted through the guide hole 223.
  • a space (gap) 230 which can house the rotary member 220 (described below), is formed between the first extending portion 217 and the second extending portion 215.
  • the guide member 218 is integrally formed by an attachment plate 232, which is attached to the second extending portion 215, and a guide rod 233, which protrudes from the attachment plate 232 through the first extending portion 217.
  • the attachment plate 232 is formed in a plate-shape and fixed to the second extending portion 215 by a screw.
  • the guide rod 233 is formed in a cylindrical shape while having the axial direction thereof aligned with the direction in which the first extending portion 217 and the second extending portion 215 face each other. The guide rod 233 guides the movement of the first extending portion 217 in the axial direction by being inserted through the guide hole 223.
  • a restricting member 234 is provided that restricts a position of the first extending portion 217, which moves in the axial direction.
  • the restricting member 234 is constituted by a nut, for example.
  • the rotary member 220 is attached to the screw shaft 219, which is positioned in the space 230 provided between the first extending portion 217 and the second extending portion 215.
  • the rotary member 220 is constituted by a nut, for example, and screwed with the screw shaft 219. This rotary member 220 is rotated to come into contact with the first extending portion 217 and then further rotated to cause the first extending portion 217 to move relatively away from the second extending portion 215.
  • a pair of width restricting members 237 are integrally formed in the swaging member 161.
  • a pair of width restricting members 237 restrict positions of the housing member 216 and the first extending portion 217, which are integrally formed with each other.
  • the pair of width restricting members 237 are provided so as to extend from the swaging member 161 toward the housing member 216 in the same direction as the axial direction of the screw shaft 219. Then, the pair of width restricting members 237 are disposed so as to sandwich the housing member 216 therebetween.
  • a gripping portion 238, which can be gripped by an operator, is integrally provided in an end portion of the second extending portion 215 on the opposite side to the swaging member 161.
  • the swaging tool 210 in which the lock bolt 5 is fastened by using the above-described swaging tool 210, will be described.
  • the fastening pin 7 is inserted into the fastening hole 4 of the pair of plate members 3a and 3b, and the collar 8 is fitted to the pintail 7c side of the fastening pin 7.
  • the swaging tool 210 is in the most contracted state, in which the space 230 provided between the first extending portion 217 and the second extending portion 215 is narrowest.
  • the swaging tool 210 in this state is fitted to the pintail 7c of the fastening pin 7.
  • the pintail 7c side of the fastening pin 7 is inserted through the swaging die 165, which is formed in the swaging member 161 of the swaging tool 210, and the insertion hole 189, which is formed in the housing member 172. Further, the pintail 7c is held by the holding member 12 as a result of the pintail 7c being fitted into the holding hole 21 formed in the holding member 12 of the swaging tool 210.
  • the rotary member 220 is rotated by a power source (not illustrated).
  • the swaging tool 210 expands a gap between the first extending portion 217 and the second extending portion 215 in the axial direction of the screw shaft 219. Accordingly, the swaging tool 210 performs an expansion that causes the distance between the swaging member 161 and the holding member 12 in the axial direction to increase.
  • the pintail 7c is held by the holding member 12 in the swaging tool 210.
  • the swaging member 161 moves toward the plate member 3b.
  • the rotary member 220 moves toward the first extending portion 217 along the screw shaft 219 and then comes into contact with the first extending portion 217. After this, in a state of being in contact with the first extending portion 217, the rotary member 220 is further rotated to move along the screw shaft 219 so as to expand the space 230 provided between the first extending portion 215 and the second extending portion 217 in the axial direction.
  • the guide hole 223, which is formed in the second extending portion 215 guides the relative movements of the first extending portion 217 and the second extending portion 215 by moving along the guide member 218, which is attached to the first extending portion 217.
  • the swaging member 161 moves in the axial direction toward the plate member 3b, while being guided by the guide member 218.
  • the guide member 218 and the screw shaft 219 adjacent to each other, it is possible to provide the guiding part and the driving part so that the guiding part and the driving part are offset with respect to each other. Accordingly, even when the rigidity of the guide member 218 is increased by making the guide member 218 larger in order to apply a large tensile load to the lock bolt 5, it is possible to suppress an increase in the dimension of the swaging tool 210 in the axial direction. As a result, it is possible to fasten the lock bolt 5 in a stable manner by using the compact swaging tool 210.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Connection Of Plates (AREA)
  • Insertion Pins And Rivets (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP18187860.4A 2013-12-06 2014-11-13 Outil de sertissage Active EP3417956B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013253680 2013-12-06
PCT/JP2014/080089 WO2015083520A1 (fr) 2013-12-06 2014-11-13 Outil d'emboutissage
EP14867902.0A EP3064289B1 (fr) 2013-12-06 2014-11-13 Outil de retreint

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14867902.0A Division EP3064289B1 (fr) 2013-12-06 2014-11-13 Outil de retreint
EP14867902.0A Division-Into EP3064289B1 (fr) 2013-12-06 2014-11-13 Outil de retreint

Publications (2)

Publication Number Publication Date
EP3417956A1 true EP3417956A1 (fr) 2018-12-26
EP3417956B1 EP3417956B1 (fr) 2020-08-19

Family

ID=53273288

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Application Number Title Priority Date Filing Date
EP14867902.0A Not-in-force EP3064289B1 (fr) 2013-12-06 2014-11-13 Outil de retreint
EP18187860.4A Active EP3417956B1 (fr) 2013-12-06 2014-11-13 Outil de sertissage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14867902.0A Not-in-force EP3064289B1 (fr) 2013-12-06 2014-11-13 Outil de retreint

Country Status (9)

Country Link
US (1) US10434565B2 (fr)
EP (2) EP3064289B1 (fr)
JP (1) JP6162255B2 (fr)
KR (1) KR101808974B1 (fr)
CN (2) CN105792961B (fr)
AU (1) AU2014358389B2 (fr)
BR (1) BR112016012744A2 (fr)
CA (1) CA2932160C (fr)
WO (1) WO2015083520A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112170672A (zh) * 2020-09-30 2021-01-05 上海威克迈龙川汽车发动机零件有限公司 一种分配管铜环胀口安装夹具以及分配管安装铜环的方法

Citations (5)

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JPS506392B1 (fr) * 1970-10-20 1975-03-13
EP0000626A1 (fr) * 1977-07-21 1979-02-07 USM Corporation Outil à traction pour la pose d'organes de fixation
US4813261A (en) * 1988-03-02 1989-03-21 Huck Manufacturing Company Rotatable offset nose assembly for setting fasteners
US5131255A (en) * 1990-07-13 1992-07-21 Makita Corporation Power driven tool
US5548889A (en) 1989-05-31 1996-08-27 Huck Patents, Inc. Fastener system including a swage fastener and tool for installing same

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JPS506392A (fr) * 1973-05-15 1975-01-23
US4189933A (en) * 1978-09-22 1980-02-26 Usm Corporation Hand operated lockbolt setting tool
JPS59188158U (ja) * 1983-05-27 1984-12-13 ポツプリベツト・フアスナ−株式会社 ブラインドナツト締着工具の締着ストロ−ク調整構造
US4956991A (en) * 1989-12-01 1990-09-18 Grumman Aerospace Corporation Variable depth cold working tool
AU4055995A (en) 1995-02-15 1996-08-22 World Wide Product Development Company Limited Power operated self-drilling rivet setting tool
US7155953B1 (en) * 2004-05-19 2007-01-02 Nikkel Robert E Anvil driving assembly
GB2435003B (en) 2006-02-10 2008-06-11 Textron Fastening Syst Ltd Apparatus for swaging a collar onto an externally grooved member
GB2442447B (en) * 2006-10-03 2009-06-03 Textron Fastening Syst Ltd Improved riveting apparatus
ITTO20070254A1 (it) * 2007-04-12 2008-10-13 Bruno Bisiach Testa per macchina ribaditrice e suo metodo di controllo.
JP4403191B2 (ja) * 2007-07-06 2010-01-20 株式会社沖データ 画像形成ユニット及び画像形成装置
CN201124214Y (zh) * 2007-08-31 2008-10-01 中国南车集团眉山车辆厂 旋转铆接器和破切器
DE102007050248B3 (de) 2007-10-20 2009-04-16 Gesipa Blindniettechnik Gmbh Setzeinheit zum Setzen von Schließringbolzen
DE102010024610B4 (de) * 2010-06-22 2012-02-16 Gesipa Blindniettechnik Gmbh Setzgerät mit einer variablen Setzhubeinstellung
DE102015116559B4 (de) * 2015-09-30 2018-11-08 Tkr Spezialwerkzeuge Gmbh Werkzeugwechsel bei Blindnietmuttern
DE102015119571A1 (de) * 2015-11-12 2017-05-18 Tkr Spezialwerkzeuge Gmbh Nietwerkzeug

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Publication number Priority date Publication date Assignee Title
JPS506392B1 (fr) * 1970-10-20 1975-03-13
EP0000626A1 (fr) * 1977-07-21 1979-02-07 USM Corporation Outil à traction pour la pose d'organes de fixation
US4813261A (en) * 1988-03-02 1989-03-21 Huck Manufacturing Company Rotatable offset nose assembly for setting fasteners
US5548889A (en) 1989-05-31 1996-08-27 Huck Patents, Inc. Fastener system including a swage fastener and tool for installing same
US5131255A (en) * 1990-07-13 1992-07-21 Makita Corporation Power driven tool

Also Published As

Publication number Publication date
CN108723280A (zh) 2018-11-02
JP6162255B2 (ja) 2017-07-12
KR20160081966A (ko) 2016-07-08
CN105792961B (zh) 2018-11-13
JPWO2015083520A1 (ja) 2017-03-16
US10434565B2 (en) 2019-10-08
US20160303641A1 (en) 2016-10-20
CN105792961A (zh) 2016-07-20
CN108723280B (zh) 2019-10-25
EP3064289A4 (fr) 2016-11-16
KR101808974B1 (ko) 2017-12-13
CA2932160A1 (fr) 2015-06-11
EP3064289A1 (fr) 2016-09-07
EP3417956B1 (fr) 2020-08-19
BR112016012744A2 (pt) 2020-08-11
AU2014358389B2 (en) 2016-12-01
AU2014358389A1 (en) 2016-06-23
EP3064289B1 (fr) 2019-04-24
WO2015083520A1 (fr) 2015-06-11
CA2932160C (fr) 2018-06-05

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